Sign up. Be informed. Be inspired!

* indicates required

You can unsubscribe at any time by clicking the link in the footer of our emails.

We use Mailchimp as our marketing platform. By clicking below to subscribe, you acknowledge that your information will be transferred to Mailchimp for processing. Learn more about Mailchimp's privacy practices.

Back to the blog

BS EN 12600 – Don’t forget about this important regulation!

Wednesday March 20, 2024

Glass installation comes with specific building regulations that you must follow for your project’s safety. Neglecting these regulations can lead to unfavorable results. One such overlooked regulation is often BS EN 12600. To ensure a safe installation, it’s crucial to have the correct glass installed for the situation. We’re here to help you understand the basics of these regulations and avoid any mistakes that could compromise your project’s safety.

BS EN 12600 specifies that a pendulum impact testing method should be used for single flat panes of glass used in buildings. The EN 12600 has replaced the British standard BS6206.

 

A weighted pendulum is dropped from 3 heights:

190mm – Class 3 dropped is 190mm, roughly equivalent to a child running into the glass.

450mm – Class 2 is 450mm, roughly equivalent to an adult walking into a glass door.

1200mm – Class 3 is 1200mm, testing for critical applications.

This test is carried out on glass to determine which glass should be used for a specific location. The test also defines the level at which glass will “break safely” (with no large shards). Frameless glass requires extra consideration on installation.

The impact test is carried out using a 45kg weighted soft-bodied bag. It is dropped at different heights to imitate different criteria. It is graded by the height of resistance, the mode of breakage and the height of the breakage.

The glass is then split into categories of how it breaks; this is shown in the table below.

All three classes have a type B breakage which is shown by how the fragments are being held together. This is the typical breakage mode for glazing products such as laminated glass.

This test is carried out on glass to determine which glass type should be used for a specific location.

 

Types of Breakage

Type of breakageExplanationExamples
Mode ANumerous cracks appear forming separate fragments with sharp edges, some of which are largeAnnealed (float) glass, heat-strengthened glass
Mode BNumerous cracks appear, but the fragments hold together and do not separateLaminated glass, wired glass, annealed glass with applied safety film
Mode CDisintegration occurs, leading to many small particles that are relatively harmlessToughened glass (thermally toughened)

The best result is 1B1, which toughened safety glass should always achieve.

When the balustrade is used as edge protection and there is a free path to the glass of 1500mm or more, either Class 1B1 or 1C1 must be achieved whilst using at least 10mm toughened glass.

When the balustrade is used as edge protection and there is a free path to the glass of 1500mm or more, either Class 1B1 or 1C1 must be achieved whilst using at least 10mm toughened glass. This is where a minimum of 21.5mm toughened laminate glass should be used for a frameless glass installation. The 21.5mm toughened laminate uses 2x 10mm toughened glass to reach the EN 12600 and achieves the min. 0.74kN line load required for BS 6180.

Where glass barriers are used for edge protection and the glass is within 800mm of the floor level, the glass must have sufficient strength to provide containment. The glass must prevent people from falling, rolling, sliding, or slipping through the gaps. The barrier must not be designed in a “ladder” style so it cannot be easily climbed, and no gap should be larger than 99mm wide.

Although it can be useful to understand the regulations around glass and balustrades, our team will always double check this with you. Our technical team are here to help advise on what balustrade product and glass you would require for your project. Call us on 01208 261040 or email us at sales@pure-vista.com.

 

Related Articles

Subscribe to the Pure Vista mailing list.

Subscribe now